Maths question, will mark Brainliest! Find the area of a circle with a radius of 4.
Answers
Answer:
8[tex]\pi[/tex]
Step-by-step explanation:
area=[tex]\pi[/tex][tex]r^{2}[/tex]
[tex]\pi[/tex][tex]4^{2}[/tex]
16[tex]\pi[/tex]
since it is a semicircle, cut that number in half.
Answer:
25.12units squared
Step-by-step explanation:
A = [tex]\frac{\pi r^2}{2}[/tex] or [tex]\frac{3.14r^2}{2}[/tex]
r = 4
3.14 x 4^2 = 50.24
50.24/2 = 25.12
Related Questions
In 2010, the population of a city was 168,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 5%. To the nearest 100 people, what was the population in 2020?
Answers
Answer:
172000
Step-by-step explanation:
Population growth from 2010 to 2015 if population increased by 8% =
1.08 x 168,000. = 181440
Population growth from 2015 to 2020 if population decreased by 5% =
0.95 x 181440 = 172,368
Rounding off to the nearest 100 people = 172,000
The population in the year 2020 is 172,368.
Calculation of the population in 2020:Since
In 2010, the population of a city was 168,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 5%.
So,
[tex]= 168000 \times 1.08 \times 0.95[/tex]
= 172,368
hence, The population in the year 2020 is 172,368.
Learn more about population here: https://brainly.com/question/13977748
The Acosta family went out to dinner. The price of the meal was $79.85. If the tip was 15%. How much money did the Acosta family pay for the meal, including tip?
A) $91.83
B) $67.87
C) $11.98
D) $94.85
Answers
Answer:
the Smith family pay for the meal = $ 36.39Step-by-step explanation:
The Smith family went out to dinner . The price of the meal was $ 29.85 .
The sales tax was 6 % of the price of the meal .
LEts find sales tax amount sales tax amount = price of meal *
sales tax 6 % ( 0.06 ) = 29.85 * 0.06 = 1.791 sales tax amount = 1.791
Price of the mean with sales tax = 29.85 + 1.791 = 31.641
The tip was 15 % of the meal and the sales tax now we find out tip amount for 31.641 15 % is 15 / 100 = 0.15
Tip amount = 31.641 * 0.15 = 4.74615
Now we add the top amount with 31.641 31.641+ 4.74615 = 36.38715
the Smith family pay for the meal = $ 36.39
Plants must break down the sugar in cells to obtain energy from the food that is produced. What is this
process called?
Respiration
Transpiration
Restoration
O Photosynthesis
Help
Answers
Answer:
Restoration I believe
I'm so sorry if I'm wrong
Step-by-step explanation:
Answer:
photosynthesis
Step-by-step explanation:
Which combinations hold the same amount of liquid as a 14-cup jug?
Answers
Answer:
b
Step-by-step explanation:
hbjbmnbbbbbbbbbbbbbbbbbbbbbbbbbbbbhbbbbbbbbbbbbbbb
find the are of the triangle
Answers
Answer:
5 units^2
Step-by-step explanation:
Area of a triangle =
[tex] \frac{bh}{2} [/tex]
plugging in:
[tex] \frac{5 \times 2}{2} [/tex]
[tex] \frac{10}{2} [/tex]
[tex]5[/tex]
Answer:
A=1/2(b)(h)
H= 2 units
b= 5
A= 10×1/2 = 5 units^2
Which expression is equivalent -6(-2/3+2x0
1. -4-12x
2. -4+2x
3. 4-12x
4. 4+12x
Answers
Answer:
3
Step-by-step explanation:
Answer:
Number 3
Step-by-step explanation:
-6( [tex]\frac{-2}{3}[/tex] + 2x) [distribute -6 to [tex]\frac{-2}{3}[/tex] and 2x]
= (-6 × [tex]\frac{-2}{3}[/tex]) + (-6 × 2x)
= (-6 × [tex]\frac{-1}{3}[/tex] × 2) + (-12x)
= (2 × 2) - 12x
= 4 - 12x
what is the appoximate distance between points d and e round your answer to the nearest hundreth
Answers
Simplify the expression:
-10(32-6)
—————
3
Answers
Answer: -260
Step-by-step explanation:
Answer:
-260
Step-by-step explanation:
First, we have to distribute -10 to 32 and -6, since 32 - 6 is in parentheses.
So, the expression becomes -320 + 60, because -10 × 32 = -320 and -10 × -6 = 60.
So, -320 + 60 = -260
Given: AD = BC and AD || BC
Prove: ABCD is a parallelogram,
A
В
Assemble the proof by dragging tiles to
the Statements and Reasons columns
Answers
Answer:Hope this helps!
Step-by-step explanation:
The dinner bill came to $24.29 before tax and tip. If the taxes were 6% and they decided to leave an 18% tip, what was the total cost of the dinner?
Answers
Answer:
$30.64 +6% tax and 18% tip
Step-by-step explanation:
Hope it helps
19.- Según la gráfica ¿Cuál es la rapidez media entre 4 s y 8 s?
A. 8 m/s
B. 1 m/s
C. 0,5 m/s
Answers
Answer:
B. 1m/s es la respuesta correcta
What will be the cost of the paving if cement costs $26.50 per square metre?
Answers
Answer: $2203.74
Step-by-step explanation:
10 Factorise completely
a 6x2 + 18x
b 8y3 – 2y4
c 16xy – 8xy?
8 Expand and simplify
a 4(x + 3) + 7(x - 1)
b x(x – 6) – x(4x – 2)
C x(3x2 + 4) + 2x(5x2 + 9)
how do u do this and what's the answers?plsss helpp
Answers
Step-by-step explanation:
Factorise completely
a 6x2 + 18x
Common factors
6x(x+3)
b 8y3 – 2y4
2y^3(4-y)
c 16xy – 8xy?
8xy(2-1)
8xy
8 Expand and simplify
a 4(x + 3) + 7(x - 1)
4x+12+7x-7
11x+5
b x(x – 6) – x(4x – 2)
x^2-6x-4x^2+2x
-3x^2-4x
-x(3x+4)
C x(3x2 + 4) + 2x(5x2 + 9)
3x^3+4x+10x^3+18x
13x^3+22x
x(13^2+22)
Pleasee helpp answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answers
Answer:
x = 146º
Step-by-step explanation:
the sum of two angles on the same side is 180º
x + 34º = 180º subtract 34º from both sides
x = 146º
The data above can be modeled by the function f(x) = 0.0425x^2 + 0.07381x - 0.49107 . Using this equation, predict the skid distance for a car that is driving 50 mph.
Answers
Answer:
f(50) = 109.44943 feet
Step-by-step explanation:
Modeling
The model of a situation where the skid distance f is measured against the car speed x can be expressed as:
[tex]f(x) = 0.0425x^2 + 0.07381x - 0.49107[/tex]
Using this equation, we can predict the skid distance for a car that is driving at x=50 mph by substituting in the equation of the model:
[tex]f(50) = 0.0425*50^2 + 0.07381*50 - 0.49107[/tex]
[tex]f(50) = 106.25 + 3.6905 - 0.49107[/tex]
f(50) = 109.44943 feet
make t the subject formula h=square root of 2t-3
Answers
h^2 = 2t - 3
2t = h^2 + 3
t = (h^2 + 3)/2
The subject formula for t in equation form is "t = (h² + 3)/2".
What is the equation?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.
Given, the subject formula h=square root of 2t-3
Since h = √2t-3
thus solving the equation for t
h² = 2t - 3
2t = h² + 3
t = (h² + 3)/2
Therefore, the Simplified form of the given equation in the terms of t is "t = (h² + 3)/2"
Learn more about equations here:
https://brainly.com/question/29657983
#SPJ2
In a fish tank there are 10 fish. 5 are goldfish, 1 is an angelfish, and 4 are guppies. If a fish is selected at random, find the probability of getting a guppy or an angelfish.
Answers
Answer:
40% guppy 10% angel
Step-by-step explanation:
The diameter of a circle is 7 m. Find the circumference to the nearest tenth
Answers
Answer:
22 m
Step-by-step explanation:
Diameter d = 7 m
Circumference of the circle C =?
[tex]C = \pi d = 3.14 \times 7 \\ \\ C= 21.98 \: m\\ \\ C \approx 22.0 \: m[/tex]
Robin has read 3/4
of a book. Mark said he had read 1/2
as much as Robin. What fraction of the book has Mark ready?
Answers
Answer:
3/8
Step-by-step explanation:
Answer:
3/8
Step-by-step explanation:
3/4 × 1/2 = 3/8I hope this helps!
Miss Hillard is purchasing candy hearts to distribute to 28 students in her math class and Valentine's Day issue would like each students get a minimum of 15 candy hearts how many will she need to purchase
Answers
Answer:
She needs to buy 420 candy hearts.
Step-by-step explanation:
15*28 = 420
15 per student, and there is 28 students
The number of candy hearts that she needs to purchase will be 420.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Miss Hillard is buying treats hearts to disperse to 28 understudies in her number-related class and Valentine's Day issue would like every understudy to get at least 15 sweets hearts.
Then the number of candy hearts that she needs to purchase will be given as,
⇒ 15 x 28
⇒ 420
The number of candy hearts that she needs to purchase will be 420.
More about the Algebra link is given below.
https://brainly.com/question/953809
#SPJ2
Lauren took 12 hours to read a 360 page book use the unit rate to determine how many hours it will take her to read 150
HELPP PLEASEE
Answers
Answer:
360 divied by 2.4 = 150
Step-by-step explanation:
Travis reads 21/4 pages of his history assignment in 7 1/2
minutes. Which TWO statements are correct?
A)
The unit rate is 7 pages per minute.
B)
7
The unit rate is
10
page per minute.
0)
The unit rate is 51 pages per minute.
D)
At the same rate, Travis reads 40 pages in 28 minutes.
E)
At the same rate, Travis reads 60 pages in 28 minutes.
Answers
Answer:
its B and E i just did the question and got it right
Answer:
B and D
Step-by-step explanation:
What is the function rule for this table? 10 POINTS! BRAINLIEST to correct answer!
Answers
y = 2x
If you line the table vertically, you can see the x value is +1 because how does 0 go to 1, you add one to it.
With the y variable, you can view its being multiplied by 2 since 5x2 = 10 , 10x2 = 20 and so on.
Therefore the function rule is y=2x
Kevin from Pullman was offered a deal to write story problems for ST2 publishing Company. For every 5 he wrote he was paid $12.00. How much did Kevin get paid per problem?
Answers
Answer: $2.40
Step-by-step explanation:
If Kevin gets 12 dollars for every 5 problems, we will need to divide 12 by 5 to find the unit rate; how much Kevin gets for each problem.
12 ÷ 5 = 2.4, and in dollars it is equal to $2.40. Because of this, Kevin is paid $2.40 for each problem he makes for the ST2 publishing Company.
I WILL MARK BRAINLIEST PLEASE HELP ASAP!!!!! Sketch a new graph of this relationship. The equation is y=7/4x
Answers
Answer:
Step-by-step explanation:
A motorcar is running at the rate of 66 km per hour. Each
of its wheels makes 500 revolutions per minute. Find the
radius of the wheel.
.(Ans: 35 cm)
Answers
Answer:
Given:
The radius of a wheel =r=35 cm=0.35 cm.
The speed it must keep =s=66 km/h=
60
66×1000
m/min=1100 m/min
To find out:
The number of revolution =n, it makes per minute to maintain that speed.
Solution:
The circumference =C of the wheel =2πr=2×
7
22
×0.35 m=2.2 m=C
The distance the wheel covers in 1 min=d=1100 m.
Now the distance =d covered by a wheel in one revolution = the circumference of the wheel.
∴ Here the number of revolution =n=
C
d
=
2.2
1100
=500.
Plz help now
We toss a die 4 times. among all possible outcomes how many have at least one occurrence of 1?
Answers
Answer:
4/24
Step-by-step explanation:
Which statement is correct?
O A.
The opposite of the opposite of 6 is 6.
OB.
The opposite of the opposite of 1 is 1.
O C.
The opposite of the opposite of 3 is 0.
O D.
The opposite of the opposite of 5 is.
Answers
Answer:
I think its OB but I'm not sure
Step-by-step explanation:
please help me on this will give you brainliest!!
Answers
Answer:
0.926
Step-by-step explanation:
Since it ask as decimal you will have to 0. and then the number which 926. Hope this helps, thank you !!
True or False. The vocabulary words expected value and mean are interchangeable.